Apparatus for applying liquid droplets to a surface by using a h

Details Apparatus for applying liquid droplets to a surface by using a h Apparatus for applying liquid droplets to a surface by using a h

1977-03-28

1978-08-08

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

041060326

ABSTRACT:
Apparatus for applying droplets of colored liquid to a surface includes a chamber divided into a liquid chamber portion and an air chamber portion. The liquid chamber portion includes an intake channel connected to a liquid supply container and a discharge channel through which the liquid is discharged for deposition on the surface. A pressure producing means is in contact with the liquid chamber portion to produce periodic pressure increases in the liquid in the chamber portion to eject it through the discharge channel to the atmosphere in a series of droplets. The air chamber portion includes an intake channel connected to a source of pressurized air and a discharge channel axially aligned with the discharge channel of the liquid chamber portion to allow the air to be discharged therethrough to the atmosphere at a high speed. The liquid droplets are thus discharged through the two axially aligned discharged channels and accelerated by the stream of air along their passage to the surface.

REFERENCES:
patent: 2278940 (1942-04-01), Murphy
patent: 2577894 (1951-12-01), Jacob
patent: 3747120 (1973-07-01), Stemme

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